/********************margin and padding********************/
.margin-5 { margin: 5px; }
.margin-10 { margin: 10px; }
.margin-15 { margin: 15px; }
.margin-20 { margin: 20px; }
.mt-5 { margin-top: 5px; }
.mr-5 { margin-right: 5px; }
.mb-5 { margin-bottom: 5px; }
.ml-5 { margin-left: 5px; }
.mt-10 { margin-top: 10px; }
.mr-10 { margin-right: 10px; }
.mb-10 { margin-bottom: 10px; }
.ml-10 { margin-left: 10px; }
.mt-20 { margin-top: 20px; }
.mr-20 { margin-right: 20px; }
.mb-20 { margin-bottom: 20px; }
.ml-20 { margin-left: 20px; }
.padding-5 { padding: 5px; }
.padding-10 { padding: 10px; }
.padding-20 { padding: 20px; }
.pt-5 { padding-top: 5px; }
.pr-5 { padding-right: 5px; }
.pb-5 { padding-bottom: 5px; }
.pl-5 { padding-left: 5px; }
.pt-10 { padding-top: 10px; }
.pr-10 { padding-right: 10px; }
.pb-10 { padding-bottom: 10px; }
.pl-10 { padding-left: 10px; }
.pt-20 { padding-top: 20px; }
.pr-20 { padding-right: 20px; }
.pb-20 { padding-bottom: 20px; }
.pl-20 { padding-left: 20px; }

.title {
  margin: 20px 0;
  font-size: 20px;
  font-weight: 400;
  color: #606266;
  padding-left: 10px;
  position: relative;
  line-height: 30px;
}
.title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 5px;
  width: 4px;
  height: 20px;
  background: #409EFF;
  border-radius: 1px;
}
